Re: SoftwareRaid + Root + Boot with FastTrak100
Moin guennelk!
guennelk@physik.fu-berlin.de schrieb am Sunday, den 05. May 2002:
> > Why? Woody-Install with bf2.4-based boot-floppies does support ATARAID
> > out-of-the-box.
> >
> I know but not the FastTrak special or only as module
Explain why. Did you try the bf2.4 flavor? If it does not work, report
it (the thing has been designed to support such hardware)!
> No, I only want to use RAID1 and RAID5.
> I use the Debian kernel-sources-2.4.18 to compile and did not get any
> extras.
Ah, you want Linux-Raid, not ATARAID. That is another story.
> # CONFIG_DMA_NONPCI is not set
> CONFIG_BLK_DEV_IDE_MODES=y
> CONFIG_BLK_DEV_ATARAID=y
> CONFIG_BLK_DEV_ATARAID_PDC=y
Well, this is for hardware/software-controlled mode, windows-compatible.
But I still cannot undestand what you are going to do. linux-raid on top
of ataraid? On top of regular block device access (partitions)?
> Thats what I did. lilo.conf:
>
> disk=/dev/hda
> bios=0x80
> disk=/dev/ataraid/d0
> bios=0x81 sectors=63 heads=255 cylinders=29904
> partition=/dev/ataraid/d0p1
Should work even without the geometry specification.
> boot=/dev/hda (it shoud be /dev/ataraid/d0 or /dev/hde ?)
Well, where do you want to have the MBR? If you initialised your
harddisks in ATARAID mode within the controller bios, you MUST NOT touch
the partitions "raw". Means: MBR of virutial ataraid drive is the MBR
seen in the boot environment. But ataraid has nothing to do with
Linux-Raid, even if it works in similar way.
> > So what now, hde or ataraid?
>
> I would like to use SoftwareRAID only, but I think to boot at least with
> LILO, I first have to use ataraid but I am not sure.
If you goal is redudancy, use a small / partition, with 200meg or so, on
one of the disks, and setup all other partitions with Linux-Raid. Later,
you can symlink parts of the raid volume to /usr, /var, /home, or even
use bind-mounts with kernel 2.4...
/vol1/usr on /usr type none (rw,bind)
/vol1/var on /var type none (rw,bind)
/vol1/home on /home type none (rw,bind)
> > Well, I implemented and tested booting of ATARAID on a Highpoint Raid
> > controller (very similar), works fine with Woody now.
>
> Do you have the controller onboard or a PCI-card ?
It was an onboard (extra) controller, Highpoint-Raid-370. But I was told
it works the same way as Promise products, onboard as well as on
external cards. Well, I do not have this hardware any longer.
> Do you use Lilo or any other Boot-Loader ?
The disks were running in raid0 mode, configured in the Highpoint bios.
BIOS was configured to boot from "external/scsi controller", the MBR was
installed into the MBR of the new virtuall harddisk, /dev/ataraid/d0.
Unfortunately, only Raid0 mode is supported by the linux driver, so I
was not able to test the redundancy.
Gruss/Regards,
Eduard.
--
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sagen: "He, ihr Dumpfbacken, ich habe LINUX und wenn ihr mich scannt, dann
schick ich euch was, das eure Win-Kröten nicht durch die Därme kriegen".
Aber dazu braucht 's wohl etwas mehr... (Christian Anzenberger in dcoulm)
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